浓缩粒细胞（） A.治疗低蛋白血症 B.补充凝血因子 C.治疗慢性贫血 D.治疗细菌

商品流通企业通过提供与众不同的商品与服务，依靠商品和服务的特色，使顾客建立品牌偏好与忠诚，由此获得竞争优势。这种战略是（）。

A.前向一体化战略

B.后向一体化战略

C.成本领先战略

D.差别化战略

下列推断正确的是[ ]

A．Na₂O、Na₂O₂组成元素相同，与 CO₂反应产物也相同

B．SiO₂是酸性氧化物，能与NaOH溶液反应

C．CO、NO、NO₂都是大气污染气体，在空气中都能稳定存在

D．新制氯水显酸性，向其中滴加少量紫色石蕊试液，充分振荡后，溶液呈红色

老年常见运动处方有（）、（）、（）、（）。

旅行社产品的销售渠道

Questions 10—11 are based on the following:
Antinuclear activist: The closing of the nuclear power plant is a victory for the antinuclear cause. It also represents a belated acknowledgment by the power industry that they cannot operate such plants safely.
Nuclear power plant manager: It represents no such thing. The availability of cheap power from nonnuclear sources, together with the cost of mandated safety inspections and safety repairs, made continued operation uneconomic. Thus it was not safety considerations but economic considerations that dictated the plant’s closing.

The reasoning in the manger’s argument is flawed because the argument

A．fails to acknowledge that the power industry might now believe nuclear power plants to be unsafe even though this plant was not closed for safety reasons

B．overlooks the possibility that the sources from which cheap power is available might themselves be subject to safety concerns

C．mistakes the issue of what the closure of the plant represents to the public for the issue of what the managers’ reasons for the closure were

D．takes as one of its premises a view about the power industry’s attitude toward nuclear safety that contradicts the activist’s view

E．(E) counts as purely economic considerations some expenses that arise as a result of the need to take safety precautions